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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Association between esodeviation and primary open-angle glaucoma: the 2010-2011 Korea National Health and Nutrition Examination Survey | Background/Aims To evaluate the association between strabismus and primary open-angle glaucoma (POAG) in a representative Korean population. Methods A total of 11 114 participants aged 20 years or older in the Korea National Health and Nutrition Examination Survey database for the years 2010 through 2011 were reviewed. A standardised protocol was used to interview every participant and to perform comprehensive ophthalmic examinations. Glaucoma diagnosis was based on fundus photography and frequency-doubling technology perimetry results, according to the International Society of Geographical and Epidemiological Ophthalmology criteria. Ocular alignment was evaluated using the alternate prism and cover test, and clinically significant horizontal strabismus was defined as exodeviation of >= 15 prism dioptres (PD) and esodeviation of >= 10 PD. Univariate and multivariate regression analyses were used to evaluate the potential risk factors for POAG. Results In the Korean population, subjects with clinically significant esodeviation had a much higher prevalence of POAG (12.32%) than those without clinically significant esodeviation (3.14%, p=0.016). After adjusting for age and intraocular pressure, clinically significant esodeviation was independently associated with POAG (OR 7.61, p=0.002). Conclusion Esodeviation was independently associated with POAG in the Korean population. This could be the result of, at least in part, ocular-adduction-induced greater strain on the temporal optic nerve head and peripapillary tissues, which makes eyes with esodeviation more vulnerable to POAG. | Kim, Jin-Soo; Kim, Young Kook; Kim, Yong Woo; Baek, Sung Uk; Ha, Ahnul; Lee, Jinho; Lee, Haeng-Jin; Kim, Dai Woo; Jeoung, Jin Wook; Kim, Seong-Joon; Park, Ki Ho | Seoul Natl Univ, Coll Med, Seoul, South Korea; Chungnam Natl Univ, Dept Ophthalmol, Sejong Hosp, Sejong, South Korea; Seoul Natl Univ Hosp, Dept Ophthalmol, Div Glaucoma, Seoul, South Korea; Hallym Univ Sacred Heart Hosp, Dept Ophthalmol, Anyang, South Korea; Jeju Natl Univ, Dept Ophthalmol, Coll Med, Jeju, South Korea; Chuncheon Sacred Heart Hosp, Dept Ophthalmol, Chunchon, South Korea; Chonbuk Natl Univ Hosp, Dept Ophthalmol, Jeonju, South Korea; Kyungpook Natl Univ Hosp, Dept Ophthalmol, Daegu, South Korea; Seoul Natl Univ Hosp, Dept Ophthalmol, Div Neuroophthalmol & Strabismus, Seoul, South Korea | ; Kim, Yong/AAX-2487-2021; Park, Ki-Ho/MYQ-9501-2025; Kim, Young-Kook/AAE-8306-2020; Kim, Jin-Soo/AAF-3359-2019; Ha, Ahnul/ABD-1589-2020 | 57049824000; 55908959500; 57218479605; 57202379043; 57189002120; 55010774100; 56045341100; 57095192800; 9640226000; 34769962900; 56276582800 | md092@naver.com; | BRITISH JOURNAL OF OPHTHALMOLOGY | BRIT J OPHTHALMOL | 0007-1161 | 1468-2079 | 105 | 12 | SCIE | OPHTHALMOLOGY | 2021 | 5.907 | 10.5 | 0.46 | 2025-07-30 | 6 | 5 | Glaucoma; Optic Nerve; Epidemiology | NORMAL-TENSION GLAUCOMA; OPTIC-NERVE TRACTION; STROKE; RISK; DEFORMATION; PROGRESSION; ADDUCTION; RECESSION; PERIMETRY; HEAD | Epidemiology; Glaucoma; Optic Nerve | Adult; Cross-Sectional Studies; Esotropia; Glaucoma, Open-Angle; Humans; Intraocular Pressure; Nutrition Surveys; Strabismus; Young Adult; adult; aged; Article; data base; disease association; eye examination; eye photography; female; groups by age; health survey; human; intraocular pressure; Korean (people); major clinical study; male; open angle glaucoma; perimetry; prevalence; risk factor; standardization; strabismus; convergent strabismus; cross-sectional study; nutrition; open angle glaucoma; young adult | English | 2021 | 2021-12 | 10.1136/bjophthalmol-2020-316901 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Biomechanical effects of dental implant diameter, connection type, and bone density on microgap formation and fatigue failure: A finite element analysis | Background and Objective: Understanding fatigue failure and microgap formation in dental implants, abutments, and screws under various clinical circumstances is clinically meaningful. In this study, these aspects were evaluated based on implant diameter, connection type, and bone density. Methods: Twelve three-dimensional finite element models were constructed by combining two bone densities (low and high), two connection types (bone and tissue levels), and three implant diameters (3.5, 4.0, and 4.5 mm). Each model was composed of cortical and cancellous bone tissues, the nerve canal, and the implant complex. After the screw was preloaded, vertical (100 N) and oblique (200 N) loadings were applied. The relative displacements at the interfaces between implant, abutment, and screw were analyzed. The fatigue lives of the titanium alloy (Ti-6Al-4V) components were calculated through repetitive mastication simulations. Mann-Whitney U and Kruskal-Wallis one-way tests were performed on the 50 highest displacement values of each model. Results: At the implant/abutment interface, large microgaps were observed under oblique loading in the buccal direction. At the abutment/screw interface, microgap formation increased along the implant diameter under vertical loading but decreased under oblique loading (p < 0.001); the largest microgap formation occurred in the lingual direction. In all cases, the bone-level connection induced larger microgap formation than the tissue-level connections. Moreover, only the bone-level connection models showed fatigue failure, and the minimum fatigue life was observed for the implant diameter of 3.5 mm. Conclusions: Tissue-level implants possess biomechanical advantages compared to bone-level ones. Twopiece implants with diameters below 3.5 mm should be avoided in the posterior mandibular area. (c) 2020 Elsevier B.V. All rights reserved. | Lee, Hyeonjong; Jo, Minhye; Noh, Gunwoo | Pusan Natl Univ, Dent Res Inst, Dent & Life Sci Inst, Sch Dent,Dept Prosthodont, Yangsan, South Korea; Korea Univ, Sch Mech Engn, Seoul, South Korea; Kyungpook Natl Univ, Sch Mech Engn, 1370 Sankyuk Dong, Daegu 702701, South Korea | Lee, Hyeonjong/HDM-6492-2022 | 57190951278; 57220596868; 55010264000 | gunwoonoh@gmail.com; | COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE | COMPUT METH PROG BIO | 0169-2607 | 1872-7565 | 200 | SCIE | COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS;COMPUTER SCIENCE, THEORY & METHODS;ENGINEERING, BIOMEDICAL;MEDICAL INFORMATICS | 2021 | 7.027 | 10.5 | 2.74 | 2025-07-30 | 46 | 55 | Dental implant; microgap; fatigue failure; finite element analysis | Dental implant; fatigue failure; finite element analysis; microgap | Biomechanical Phenomena; Bone Density; Dental Implants; Finite Element Analysis; Mandible; Stress, Mechanical; Titanium; Biomechanics; Bone; Dental alloys; Failure (mechanical); Finite element method; Screws; Tissue; Titanium alloys; bone cement; titanium; Biomechanical effects; Connection model; Cortical and cancellous bone; Displacement value; Fatigue failures; Relative displacement; Three dimensional finite element model; Vertical loadings; Article; biomechanics; bone density; bone tissue; controlled study; cortical bone; finite element analysis; Kruskal Wallis test; mastication; rank sum test; simulation; size; trabecular bone; biomechanics; finite element analysis; mandible; mechanical stress; tooth implant; Fatigue of materials | English | 2021 | 2021-03 | 10.1016/j.cmpb.2020.105863 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Low temperature photoluminescence and solvatochromic studies of organic hybrid 4-methoxybenzylammonium chloride (4-MBACl) | We report temperature dependent photoluminescence (PL) and solvatochromic studies of 4-methoxybenzylammonium chloride (4-MBACl). The single crystals of 4-MBACl has been grown using slow solvent evaporation method under ambient conditions and have been confirmed using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic studies. Thermal stability of the material has been analyzed by thermogravimetric (TG) and differential thermal analyzes (DTA). 4-MBACl crystal is photoluminescent with emission wavelength maximum at 300 nm. Exciton-phonon coupling in 4-MBACl is realized from temperature dependent PL studies. Changes in full width at half maximum (FWHM) of PL emission peak, intensity maximum (I-max) and wavelength maximum (lambda(max)) have been analyzed systematically between temperatures 290-10 K in order to understand the photophysical phenomenon behind the emission. Optical band gap (E-g) of 4-MBACl has been varied using solvent polarity, proticity and solution concentration. Interactions like OH-O, OH-pi and pi-pi stacking are explained to reason the notable shifts. (C) 2021 Elsevier B.V. All rights reserved. | Ranjani, E. Anu; Sangeetha, K.; Daniel, D. Joseph; Karthick, T. | SASTRA Deemed Univ, Sch Elect & Elect Engn, Thanjavur 613401, Tamil Nadu, India; Kyungpook Natl Univ, Dept Phys, Ctr High Energy Phys, Daegu 41566, South Korea | thangavel, karthick/T-1917-2019 | 57222156317; 24336189700; 55235066800; 57553162500 | sangeetha@eee.sastra.edu; | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | SPECTROCHIM ACTA A | 1386-1425 | 1873-3557 | 253 | SCIE | SPECTROSCOPY | 2021 | 4.831 | 10.5 | 0.08 | 2025-07-30 | 3 | 3 | pi electron delocalization; Optical band gap; PL; Exciton-phonon coupling; Solvatochromism; J-aggregates | EMISSION | Exciton-phonon coupling; J-aggregates; Optical band gap; PL; Solvatochromism; π electron delocalization | Chlorine compounds; Differential thermal analysis; Energy gap; Photoluminescence; Solvents; Spectroscopic analysis; Temperature; Thermodynamic stability; Exciton-phonon couplings; Fourier transform infrared; Low temperature photoluminescence; Photophysical phenomena; Solution concentration; Solvent evaporation method; Spectroscopic studies; Temperature dependent photoluminescences; Fourier transform infrared spectroscopy | English | 2021 | 2021-05-15 | 10.1016/j.saa.2021.119575 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Molecular characterization of fluoroquinolone-resistant Escherichia coli from broiler breeder farms | Fluoroquinolones (FQs) have been used effectively antimicrobial agents of choice for treatment of various infections caused by E. coli and FQs-resistance of E. coli from broiler breeders has been implicated in its vertical transmission to their offspring. The objective of this study investigated the phenotypic and genotypic characteristics of FQ-resistant E. coli isolates from broiler breeder farms in Korea. A total of 106 FQ-resistant E. coli isolates were tested in this study and all isolates had mutations in quinolone resistance determining regions; all (100%) had mutations in gyrA, 89 (84.0%) had mutations in parE, 8 (7.5%) isolates showed the mutations with parC and parE, and none had mutations in gyrB. The predominant mutation type was double mutation in gyrA (S83L and D87N), and all FQ-resistant E. coli isolates that had mutations in parC or parE also had double mutations in gyrA. Especially, FQ-resistant E. coli isolates which possessed double mutations in gyrA in combination with double mutations in parC or single mutations in both parC and parE were shown high levels of minimum inhibitory concentrations rage. Of the 23 plasmid-mediated quinolone resistance (PMQR)-positive E. coli isolates, qnrS was detected in 10 (9.4%) isolates, and followed by qnrA (7 isolates, 6.6%), qnrB (4 isolates, 3.8%), and aac(6')-Ib-cr (2 isolates, 1.9%). Sixteen (69.6%) of the 23 PMQR-positive E. coli isolates harbored class 1 integrons with four different gene cassette arrangements and total of 9 plasmid replicon types were also identified in 23 PMQR-positive E. coli isolates. This is the first study to investigate the prevalence and characteristics of FQ-resistant and PMQR-positive E. coli isolated from the broiler breeder in Korea; it supports that constant monitoring and studies at the broiler breeder level are required to prevent the pyramidal transmission of FQ-resistant E. coli. | Seo, Kwang Won; Lee, Young Ju | Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Zoonoses Res Inst, Daegu 41566, South Korea; Mississippi State Univ, Coll Vet Med, Dept Basic Sci, Mississippi State, MS 39762 USA | 57203233812; 56612134500 | youngju@knu.ac.kr; | POULTRY SCIENCE | POULTRY SCI | 1525-3171 | 100 | 8 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 1.53 | 2025-07-30 | 12 | 14 | Escherichia coli; fluoroquinolone; antimicrobial resistance; broiler parent stock; PMQR | MEDIATED QUINOLONE RESISTANCE; CTX-M; ADDICTION SYSTEMS; TOPOISOMERASE-IV; BETA-LACTAMASE; PREVALENCE; MECHANISMS; GENES; MUTATIONS; CHICKENS | antimicrobial resistance; broiler parent stock; Escherichia coli; fluoroquinolone; PMQR | Animals; Anti-Bacterial Agents; Chickens; DNA Gyrase; Drug Resistance, Bacterial; Escherichia coli; Escherichia coli Infections; Farms; Fluoroquinolones; Microbial Sensitivity Tests; Mutation; Republic of Korea; antiinfective agent; DNA topoisomerase (ATP hydrolysing); quinolone derivative; agricultural land; animal; antibiotic resistance; chicken; Escherichia coli; Escherichia coli infection; genetics; microbial sensitivity test; mutation; South Korea; veterinary medicine | English | 2021 | 2021-08 | 10.1016/j.psj.2021.101250 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Muscle fiber and fresh meat characteristics of white-striping chicken breasts, and its effects on palatability of sous-vide cooked meat | The aim of this study was to compare the histochemical and meat quality characteristics between the normal and white-striping (WS) pectoralis major muscles. Additionally, this study investigated the effects of oven cooking (OV) and sous-vide (SV) cooking methods on objective texture parameters and sensory quality characteristics of the normal and WS chicken breast meats. Results showed that the WS condition broilers had higher body and breast weights (P 0.05). After cooking, there was greater cooking loss, Warner-Bratzler shear force, and texture parameter analysis-hardness values for breast fillets cooked by OV treatment at 180 degrees C for reached core temperature to 71 degrees C compared to the fillets cooked by SV treatment at 60 degrees C for 2 h (P 0.05). Regarding sensory quality characteristics, WS breast fillets cooked by SV (SV+WS) were rated as tenderer and juicier, and given a higher overall acceptability score compared to normal and WS fillets cooked by OV (P < 0.05). However, owing to a lesser developed flavor in SV+WS fillets, the panelists assigned a lower overall acceptability rating in these fillets compared to SV+Normal fillets (P < 0.05). Overall, the SV cooking can be an effective method for improving the sensory quality characteristics of WS and normal chicken breast. | Lee, Boin; Park, Chun Ho; Kong, Changsu; Kim, Young Soon; Choi, Young Min | Kyungpook Natl Univ, Dept Anim Sci, Sangju, South Korea; Korea Univ, Dept Integrated Biomed & Life Sci, Seoul, South Korea; Daejeon Hlth Inst Technol, Dept Hotel & Food Serv Culinary Art, Daejeon, South Korea | ; Kim, Kyoungmi/AEP-3965-2022; Choi, Young/J-6027-2014 | 57218130871; 57216440160; 36027521600; 57196173426; 57226673843 | ymchoi1@knu.ac.kr; | POULTRY SCIENCE | POULTRY SCI | 1525-3171 | 100 | 7 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 2.45 | 2025-07-30 | 18 | 18 | white-striping chicken; sous-vide; muscle fiber; meat quality; sensory quality | SENSORY QUALITY CHARACTERISTICS; WOODEN-BREAST; BROILER; COOKING; PORK; CONSEQUENCES; COMBINATIONS; ATTRIBUTES; PROFILE | meat quality; muscle fiber; sensory quality; sous-vide; white-striping chicken | Animals; Chickens; Cooking; Meat; Muscle Fibers, Skeletal; Pectoralis Muscles; animal; chicken; cooking; meat; pectoral muscle; skeletal muscle cell | English | 2021 | 2021-07 | 10.1016/j.psj.2021.101177 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Numerical analysis of direct contact condensation-induced water hammering effect using OpenFOAM in realistic steam pipes | Direct contact condensation (DCC)-induced water hammer in a horizontal pipe is an important phenomenon observed in many industrial fields such as nuclear and thermal engineering. This study aims to simulate the DCC-induced water hammering effect in previously designed steam pipes. The numerical simulation for the water hammering was performed in our computational fluid dynamics (CFD) solver modified from interFoam included in the open-source software OpenFOAM v.6. The new solver includes an energy equation and existing phase change models. Computational domains were reconstructed using our Python-based semiautomated mesh-generation algorithm to investigate local variations of temperature and pressure inside a steam pipe. Continuity, momentum, and energy equations of a volume of fluid model were discretized using the pressure-implicit method for the pressure-linked equation algorithm. Implicit Euler and central difference schemes were used for temporal and spatial discretization, respectively. The CFD solver with the phase change model was validated using a one-dimensional Stefan problem's benchmark case. In a PMK-2 steam pipe, the temperature drop due to the water hammering was temporally consistent with the existing experimental result. A smaller pressure was captured in the region where the phase change of steam to water was observed. This induced an adverse pressure gradient that drove the water moving backward, resulting in water hammering. The water hammering was further investigated by changing the water temperature and flow rate in a different steam pipe. A higher water flow rate (i.e., large Froude number) was found to dampen the steam pipe's pressure shock. (C) 2021 Elsevier Ltd. All rights reserved. | Pham, T. Q. D.; Choi, Sanghun | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea | Choi, Sanghun/AGS-7430-2022 | 57215673039; 55847101000 | pqducthinhbka@gmail.com;s-choi@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 171 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2021 | 5.431 | 10.5 | 2.25 | 2025-07-30 | 28 | 30 | Computational fluid dynamics; Condensation; InterFoam; Lee model; Phase change; Tanasawa model; Volume of fluid model | HEAT-TRANSFER; FLOW | Computational fluid dynamics; Condensation; InterFoam; Lee model; Phase change; Tanasawa model; Volume of fluid model | Computational fluid dynamics; Condensation; Cutting; Flow of water; Mesh generation; One dimensional; Open source software; Open systems; Steam; Thermal Engineering; Adverse pressure gradient; Central difference scheme; Computational domains; Direct contact condensation; Mesh generation algorithm; Temperature and pressures; Temporal and spatial; Volume of fluid model; Steam condensers | English | 2021 | 2021-06 | 10.1016/j.ijheatmasstransfer.2021.121099 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Numerical modeling of an outdoor unit heat exchanger for residential heat pump systems with nonuniform airflow and refrigerant distribution | Multirow finned tube heat exchangers have been extensively used as an outdoor unit in heat pump applications. Several factors, including nonuniform airflow distribution, refrigerant circuitry arrangement, fin and tube configurations, and operating conditions, have a significant influence on its thermohydraulic performance. For accurate outdoor unit heat exchanger modeling and analysis, developing a robust and experimentally validated numerical model reflecting the influence of realistic nonuniform airflow and refrigerant distribution is necessary. This paper presents a general-purpose numerical model, implemented in MATLAB, for a multirow finned tube heat exchanger using a tube-by-tube modeling approach based on the log mean enthalpy difference method. State-of-the-art heat transfer and pressure drop correlations are used for each refrigerant-side's flow regime and airside fin configuration. An alternative iteration loop is also incorporated to solve the complex circuitry of the heat exchanger under wet conditions. Simulation results of the current model yield consistent and more real heat transfer, pressure drop, and temperature contours using nonuniform airflow velocity profiles than those of the simplified models that assumed uniform airflow. Therefore, higher accuracy of the performance evaluation for complex refrigerant circuitry was achieved. Furthermore, current model is able to identify the exit vapor quality that allows proper selection of tubes and mass flow rates to avoid unnecessary superheat or sub cooling. The model is also validated with available experimental data, and the maximum error is within +/- 10.0%. (C) 2021 Elsevier Ltd. All rights reserved. | Ishaque, Shehryar; Kim, Man-Hoe | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea | 57212480549; 55686310000 | manhoe.kim@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 175 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2021 | 5.431 | 10.5 | 1.17 | 2025-07-30 | 16 | 18 | Finned tube; Heat exchanger; Nonuniform airflow distribution; Thermohydraulic performance | THERMAL-HYDRAULIC PERFORMANCE; CROSS-FIN CONDUCTION; SEASONAL PERFORMANCE; DESIGN | Finned tube; Heat exchanger; Nonuniform airflow distribution; Thermohydraulic performance | Air; Drops; Emulsification; Heat pump systems; Iterative methods; MATLAB; Numerical methods; Numerical models; Pressure drop; Refrigerants; Tubes (components); Airflow distribution; Current modeling; Finned tube; Finned tube heat exchangers; Heat-pump systems; Nonuniform airflow distribution; Outdoor units; Refrigerant distributions; Residential heat pumps; Thermo-hydraulic performance; Fins (heat exchange) | English | 2021 | 2021-08 | 10.1016/j.ijheatmasstransfer.2021.121323 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Performance enhancement in minichannel heat sinks using supercritical carbon dioxide (sCO2) as a coolant | Minichannel heat sinks are widely adopted heat dissipation solutions from miniaturized heat flux generating components, such as microprocessors. This paper presents further enhancements in the thermal and hydraulic performance of a minichannel heat sink by employing supercritical carbon dioxide (sCO(2)) as a coolant. In this study, thermal and hydraulic performance of CO2-cooled minichannel heat sink at three inlet pressures (P-in,P-CO2) (i.e., 8.0, 10 and 12 MPa) and inlet temperatures (T-in,T-CO2) ranging between 30 degrees C - 60 degrees C is compared with a water-cooled minichannel heat sink at inlet conditions (0.1 MPa, 30 degrees C -38 degrees C) . To investigate the performance of the minichannel heat sinks, a conjugate heat transfer model is solved in a commercial code ANSYS-CFX. Whereas the variations in thermo-physical properties of supercritical carbon dioxide (sCO2) are incorporated in ANSYS-CFX through a real gas property (RGP) table. The results reveal a maximum enhancement of 42.13% in average heat transfer coefficient ((h) over bar) for minichannel heat sink using CO2 as a coolant at inlet conditions of 8.0 MPa and 34 degrees C. Similarly, a pressure drop reduction of 55.79% is computed for CO2 as a coolant at corresponding inlet conditions as compared to water-cooled minichannel heat sink. Moreover, the results suggest that replacing water with CO2 as a coolant at higher inlet pressures (P-in,P-CO2) i.e., 10 MPa and 12 MPa can further reduce pressure drops in the minichannel heat sink by 60.65% and 62.41%, respectively. Apart from the lower base temperatures, performance evaluation criteria (PEC) suggests that the overall performance of the minichannel heat sink using CO2 at 8.0 MPa is roughly enhanced by 2 times as compared to watercooled minichannel heat sink. (C) 2021 Elsevier Ltd. All rights reserved. | Awais, Ahmad Ali; Saeed, Muhammad; Kim, Man-Hoe | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea; Khalifa Univ Sci & Technol, Mech Engn Dept, Sas Al Nakhl Campus,POB 127788, Abu Dhabi 51133, U Arab Emirates; Pusan Natl Univ, Sch Mech Engn, Busan 46241, South Korea | ; Saeed, Muhammad/R-4401-2019 | 57215417633; 56513270400; 55686310000 | manhoe.kim@knu.ac.kr; | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | INT J HEAT MASS TRAN | 0017-9310 | 1879-2189 | 177 | SCIE | ENGINEERING, MECHANICAL;MECHANICS;THERMODYNAMICS | 2021 | 5.431 | 10.5 | 1.75 | 2025-07-30 | 23 | 26 | Minichannel heat sink; Supercritical carbon dioxide; Electronic cooling; Heat transfer enhancement | PRESSURE-DROP CHARACTERISTICS; HYDRAULIC PERFORMANCE; THERMAL PERFORMANCE; HEADER DESIGN; EXCHANGERS; NANOFLUIDS; OPTIMIZATION; AL2O3 | Electronic cooling; Heat transfer enhancement; Minichannel heat sink; Supercritical carbon dioxide | Carbon dioxide; Coolants; Drops; Electronic cooling; Heat flux; Heat transfer coefficients; Heat transfer performance; Pressure drop; Supercritical fluid extraction; ANSYS-CFX; Electronics cooling; Heat Transfer enhancement; Inlet conditions; Inlet pressures; Mini-channels; Minichannel heat sink; Supercritical carbon dioxides; Thermal and hydraulic performance; Heat sinks | English | 2021 | 2021-10 | 10.1016/j.ijheatmasstransfer.2021.121539 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Research Note: Comparison of histochemical characteristics, chicken meat quality, and heat shock protein expressions between PSE-like condition and white-stripping features of pectoralis major muscle | The present study compared the histochemical and meat quality characteristics of broiler pectoralis major (PM) muscle among the groups categorized according to muscle abnormalities, including pale, soft, and exudative (PSE)-like condition and white-striping (WS) feature. Additionally, this study investigated the associations between muscular abnormalities and expression levels of heat shock proteins (HSPs), including alpha beta-crystallin, HSP70, and HSP90, at the early postmortem period. The WS breasts with normal quality condition showed greater PM muscle weight and were more associated with fiber hypertrophy, compared to the no WS breasts with PSE-like condition (P 0.05), except for lightness and cooking loss. Higher alpha beta-crystallin and HSP90 expression levels were observed in PSE-like breast compared to normal quality breast (P 0.05). Therefore, HSP levels at the early postmortem period, especially those of alpha beta-crystallin and HSP90, were associated with the breast quality characteristics of PSE-like condition broilers. | Lee, Boin; Choi, Young Min | Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju, South Korea | Choi, Young/J-6027-2014 | 57218130871; 57226673843 | ymchoi1@knu.ac.kr; | POULTRY SCIENCE | POULTRY SCI | 1525-3171 | 100 | 8 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 1.07 | 2025-07-30 | 8 | 10 | heat shock proteins; PSE-like condition; white-striping feature; muscle fiber; chicken meat quality | BROILER BREAST MEAT; PROTEOMIC ANALYSIS; WOODEN-BREAST; TENDERNESS; ISOFORMS; PALE; SOFT | chicken meat quality; heat shock proteins; muscle fiber; PSE-like condition; white-striping feature | Animals; Chickens; Cooking; Heat-Shock Proteins; Meat; Pectoralis Muscles; heat shock protein; animal; chicken; cooking; genetics; meat; pectoral muscle | English | 2021 | 2021-08 | 10.1016/j.psj.2021.101260 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Research Note: Expression level of heat shock protein 27 in PSE-like and fast-glycolyzing conditions of chicken pectoralis major muscle | This study compared the meat quality traits, histochemical characteristics, and heat shock protein (HSP) 27 expression levels of the broiler Pectoralis major (PM) muscles in groups classified by pale, soft, and exudative (PSE)-like and fast-glycolyzing conditions using the lightness and muscle pH change values. Chicken PM muscles showing higher pH change value and paler meat surface (as HP group) could be associated with the PSE-like condition, and exhibited a lower pH(24 h) value and higher cooking loss compared to PM muscles showing lower pH change value and normal color (as LN group) (P 0.05). Muscle samples showing a higher pH change value exhibited a greater level of HSP27 compared to muscle samples showing a lower pH change value (P < 0.05). Therefore, the current findings suggested that the expression level of HSP27 can be a useful indicator for explaining variations in the glycolytic rate of chicken breast muscle. | Lee, Boin; Choi, Young Min | Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju 37224, South Korea | Choi, Young/J-6027-2014 | 57218130871; 57226673843 | ymchoi1@knu.ac.kr; | POULTRY SCIENCE | POULTRY SCI | 0032-5791 | 1525-3171 | 100 | 11 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 0.61 | 2025-07-30 | 5 | 5 | heat shock protein 27; PSE-like condition; glycolytic rate; meat quality; chicken breast | MEAT QUALITY; LONGISSIMUS MUSCLE; BREAST; PALE; PORK; SOFT | chicken breast; glycolytic rate; heat shock protein 27; meat quality; PSE-like condition | Animals; Chickens; Heat-Shock Proteins; HSP27 Heat-Shock Proteins; Meat; Pectoralis Muscles; heat shock protein; heat shock protein 27; animal; chicken; genetics; meat; pectoral muscle | English | 2021 | 2021-11 | 10.1016/j.psj.2021.101424 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Research Note: Increased myostatin expression and decreased expression of myogenic regulatory factors in embryonic ages in a quail line with muscle hypoplasia | Genetic selection of quail for a low body weight for more than 80 generations established a low-weight (LW) Japanese quail line that has been previously characterized to have a muscle hypoplasia phenotype. The aim of this study is to investigate the relationship of temporal expression levels of myostatin (Mstn) and myogenic regulatory factors (MRFs) with hypoplastic muscle growth in the LW line. During embryonic day (E) 13 to 15, gain of embryo weight was 2-fold lower (P < 0.001) in the LW line than that in the random bred control (CON). Gains in body weight and pectoralis muscle weight from hatch to posthatch day (P) 28 were also significantly lower (P < 0.01) in the LW line but increased by 4-fold (P < 0.05) during P42 to P75. PCR analysis showed that expression levels of Mstn were greater in the LW at embryonic stage (E12 to E14, P < 0.05), but there was no difference after hatch. In addition, expression levels of Pax7 and myogenin (MyoG) at E12 were 23-fold (P < 0.05) and 3.4-fold (P < 0.05) lesser in the LW line, respectively. At E14, expression of Pax3, Pax7, and MyoG gene was 3.5-fold (P < 0.05), 6.5-fold (P = 0.065), and 4.4-fold (P < 0.01) less than that in the CON. Taken together, high expression levels of Mstn and low expression of MRFs during embryonic stages can be associated with development of muscle hypoplasia and delayed muscle growth in the LW quail line. These data provide evidence that genetic selection for a low body weight resulting in an avian model with muscle hypoplasia has altered the expression profiles of myogenic factors. | Kim, Dong-Hwan; Choi, Young Min; Suh, Yeunsu; Shin, Sangsu; Lee, Joonbum; Hwang, Seongsoo; Lee, Sang Suk; Lee, Kichoon | Ohio State Univ, Dept Anim Sci, Columbus, OH 43210 USA; Kyungpook Natl Univ, Dept Anim Sci, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Anim Biotechnol, Sangju 37224, South Korea; Ohio State Univ, Interdisciplinary PhD Program Nutr, Columbus, OH 43210 USA; RDA, Anim Biotechnol Div, Natl Inst Anim Sci, Wanju Gun 55365, Jeonbuk, South Korea; Sunchon Natl Univ, Dept Anim Sci & Technol, Jeonnam 57922, South Korea | Kim, Donghwan/LRC-0840-2024; Choi, Young/J-6027-2014; Lee, Su/ISU-5629-2023; Lee, Kichoon/G-2234-2012; Lee, Suhyun/HOF-4644-2023 | 56621562800; 57226673843; 26430117900; 55490360000; 57194466213; 8725163200; 57200928232; 14123395400 | lee.2626@osu.edu; | POULTRY SCIENCE | POULTRY SCI | 1525-3171 | 100 | 4 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 1.07 | 2025-07-30 | 8 | 7 | myostatin; myofiber number; quail; muscle development; myogenic regulatory factor | MASS; PAX3 | muscle development; myofiber number; myogenic regulatory factor; myostatin; quail | Animals; Chickens; Coturnix; Muscle Development; Muscle, Skeletal; Myogenic Regulatory Factors; Myostatin; Quail; myogenic factor; myostatin; animal; chicken; Coturnix; genetics; muscle development; quail; skeletal muscle | English | 2021 | 2021-04 | 10.1016/j.psj.2021.01.001 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Software-defined vehicular network (SDVN): A survey on architecture and routing | With the advances in automotive industry and telecommunication technologies, more and more vehicles are connected which paves the pathway to future intelligent transportation system (ITS). The safety of both the passengers and pedestrians has been a major concern in ITS. Vehicular ad hoc network (VANET) is a promising technology that can provide a wide range of services, such as safety, convenience, and infotainment for both the passengers and drivers. However, due to the dynamic nature of the vehicular environment, VANET has to deal with several challenges such as intermittent connectivity, provisioning of quality of service (QoS), and heterogeneity of applications. Moreover, the deployment of new services/protocols on a large-scale is a daunting task due to the inflexible architecture of VANET. The distinctive features of software-defined vehicular network (SDVN) such as programmability and flexibility leverages the vehicular network to satisfy the performance and management requirements of VANET. In this paper, we first present the taxonomy of SDVN architecture based on its modes of operation. Then we survey the state-of-the-art SDVN routing protocols and classify them based on different criteria. Finally, we highlight the challenges of current SDVNs. | Islam, Md Mahmudul; Khan, Muhammad Toaha Raza; Saad, Malik Muhammad; Kim, Dongkyun | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu, South Korea | Khan, Turyalai/HPH-0061-2023; Saad, Malik/ABF-9433-2021 | 57223681377; 57202044597; 57220715290; 35753648800 | mislam@knu.ac.kr;toaha@knu.ac.kr;maliksaad@knu.ac.kr;dongkyun@knu.ac.kr; | JOURNAL OF SYSTEMS ARCHITECTURE | J SYST ARCHITECT | 1383-7621 | 1873-6165 | 114 | SCIE | COMPUTER SCIENCE, HARDWARE & ARCHITECTURE;COMPUTER SCIENCE, SOFTWARE ENGINEERING | 2021 | 5.836 | 10.5 | 1.23 | 2025-07-30 | 44 | 51 | Software-defined networking; VANET; Software-defined vehicular ad hoc networks; Architecture; Routing protocols | SDN; CHALLENGES; FUTURE | Architecture; Routing protocols; Software-defined networking; Software-defined vehicular ad hoc networks; VANET | Intelligent systems; Intelligent vehicle highway systems; Network architecture; Pedestrian safety; Quality of service; Surveys; Architecture-based; Intelligent transportation systems; Intermittent connectivity; Modes of operation; State of the art; Telecommunication technologies; Vehicular environments; Vehicular networks; Vehicular ad hoc networks | English | 2021 | 2021-03 | 10.1016/j.sysarc.2020.101961 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | The occurrence of CTX-M-producing E. coli in the broiler parent stock in Korea | A large number of antimicrobials are used for the treatment of bacterial infections, and the emergence of antimicrobial-resistant Escherichia coli (E. coli) in livestock and the transfer of resistant isolates to humans poses a serious potential risk to public health. In particular, broiler parent stock produce thousands of eggs for commercial broiler chickens and can transfer antimicrobial-resistant bacteria and drug-resistance genes to chicks. This study was conducted to investigate the prevalence and characteristics of third-generation cephalosporin-resistant and extended-spectrum beta-lactamases (ESBL)-producing E. coli isolated from the broiler parent stock in Korea. Among 51 cefotaxime-resistant E. coli isolates, 45 (88.2%) isolates were identified as multidrug resistant and 21 isolates showed phenotypic and genotypic characteristics of CTX-M-producing E. coli. The CTX-M genes CTX-M-14, CTX-M-15, CTX-M-1, and CTX-M-1 were detected in 10, 7, 3, and 1 isolates, respectively. ISEcp1 or IS26 1 ISEcp1 were identified upstream of all CTX-M-type genes, and orf477 and IS903 were detected downstream of 9 and 10 CTX-M-type genes, respectively. Thirteen (61.9%) of the 21 CTX-M-producing E. coli isolates harbored class 1 integrons with 4 different gene cassette arrangements. Among the plasmid replicons, CTX-M-1 was located on I1, F, and FIB; CTXM-14 on F and FII; CTX-M-15 on FII, FIA, and FIB; and CTX-M-65 on FIB. This is the first study to investigate the presence and distribution of third-generation cephalosporin-resistant and CTX-M-producing E. coli isolated from the broiler parent stock level in Korea, and the results indicate that comprehensive surveillance and persistent monitoring systems in broiler parent stock farms are necessary to prevent the dissemination of resistant isolates. | Seo, Kwang Won; Lee, Young Ju | Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Zoonoses Res Inst, Daegu 41566, South Korea; Mississippi State Univ, Coll Vet Med, Dept Basic Sci, Mississippi State, MS 39762 USA | 57203233812; 56612134500 | youngju@knu.ac.kr; | POULTRY SCIENCE | POULTRY SCI | 1525-3171 | 100 | 2 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2021 | 4.014 | 10.5 | 1.68 | 2025-07-30 | 12 | 13 | Escherichia coli; antimicrobial resistance; broiler parent stock; third-generation cephalosporin; CTX-M | SPECTRUM-BETA-LACTAMASE; RESISTANT ESCHERICHIA-COLI; EXTENDED-SPECTRUM; MOLECULAR CHARACTERIZATION; HIGH PREVALENCE; ANTIMICROBIAL RESISTANCE; KLEBSIELLA-PNEUMONIAE; COMPANION ANIMALS; ADDICTION SYSTEMS; RETAIL CHICKEN | antimicrobial resistance; broiler parent stock; CTX-M; Escherichia coli; third-generation cephalosporin | Animals; Anti-Bacterial Agents; beta-Lactamases; Cefotaxime; Chickens; Drug Resistance, Microbial; Escherichia coli; Escherichia coli Infections; Feces; Ovum; Poultry Diseases; Republic of Korea; antiinfective agent; beta lactamase; cefotaxime; animal; antibiotic resistance; bird disease; chicken; drug effect; Escherichia coli; Escherichia coli infection; feces; genetics; metabolism; microbiology; ovum; South Korea; veterinary medicine | English | 2021 | 2021-02 | 10.1016/j.psj.2020.09.005 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Crystalline Lamellar Structure of Thermosetting Urea-Formaldehyde Resins at a Low Molar Ratio | Reducing formaldehyde emission from cured urea-formaldehyde (UF) resins forced us to synthesize UF resins at a low formaldehyde to urea (F/U) molar ratio (<= 1.0), resulting in low emission and poor adhesion by forming crystalline domains instead of building a three-dimensional network in cured resins. For the first time, we report a crystalline lamellar structure of thermosetting UF resins at a low molar ratio and compare it with highly amorphous UF resins at a high F/U molar ratio (1.6). Films of crystalline and amorphous UF resins were prepared using a spin-coater and characterized using atomic force microscopy. In addition, transmission electron microscopy, gel permeation chromatography, and X-ray diffraction were also employed for their characterization. The results showed that 1.0 UF resins had a low molecular weight with a lamellar structure of the crystalline domain, whereas 1.6 UF resins exhibited a high molecular weight with an amorphous structure and had a lower surface roughness. Fourier transform infrared and carbon-13 nuclear magnetic resonance spectroscopy also proved that linear molecules and hydrogen bonding were responsible for the formation of crystalline lamellar structures in thermosetting UF resins at a low molar ratio. | Wibowo, Eko Setio; Park, Byung-Dae | Kyungpook Natl Univ, Dept Wood Sci & Technol, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu 41566, South Korea | Park, Byung-Dae/ABB-1934-2020; Wibowo, Eko/AAL-5888-2021 | 57214910272; 7402834820 | byungdae@knu.ac.kr; | MACROMOLECULES | MACROMOLECULES | 0024-9297 | 1520-5835 | 54 | 5 | SCIE | POLYMER SCIENCE | 2021 | 6.057 | 10.6 | 2.76 | 2025-07-30 | 37 | 40 | SURFACE-MORPHOLOGY; CHEMICAL-STRUCTURE; C-13 NMR; ADHESIVES; EMISSION; SIZE | Curing; Film preparation; Formaldehyde; Gel permeation chromatography; Hydrogen bonds; Metabolism; Molar ratio; Molecular weight; Nuclear magnetic resonance spectroscopy; Surface roughness; Synthetic resins; Urea; Urea formaldehyde resins; Atomic-force-microscopy; Crystalline domains; Formaldehyde emission; Gel-permeation chromatography; Low emission; Molar ratio; Poor adhesion; Spin coaters; Three-dimensional networks; Urea-formaldehyde resin; High resolution transmission electron microscopy | English | 2021 | 2021-03-09 | 10.1021/acs.macromol.1c00073 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Discrepancy between MRA and DSA in identifying the shape of small intracranial aneurysms | OBJECTIVE The authors evaluated the sensitivity and accuracy of MRA in identifying the shape of small-sized unruptured intracranial aneurysms. METHODS Small (< 7 mm) unruptured intracranial aneurysms initially detected by MRA and confirmed by DSA between January 2017 and December 2018 were morphologically reviewed by neuroradiologists. Regularity or irregularity of an- eurysm shape was analyzed by two independent reviewers using MRA without DSA results. DSA findings served as the reference standard for aneurysm shape. Irregular shape, which in small aneurysms is associated with a higher likelihood of rupture, was defined as positive, and MRA sensitivity, specificity, and accuracy were determined by using evaluations based on location, size, and MRA magnetic strength (1.5T vs 3T MRA). Multivariate analysis was performed to deter- mine risk factors for false-negative MRA results for irregularly shaped aneurysms. RESULTS In total, 652 unruptured intracranial aneurysms in 530 patients were reviewed for this study. For detecting aneurysm shape irregularity, the overall MRA sensitivity was 60.4% for reviewer 1 and 60.9% for reviewer 2. Anterior cerebral artery aneurysms had the lowest sensitivity for location (36.7% for reviewer 1, 46.9% for reviewer 2); aneurysms sized < 3 mm had the lowest sensitivity for size (26.7% for both reviewers); and 1.5T MRA had lower sensitivity and ac- curacy than 3T MRA. In multivariate analysis, location, size, and magnetic strength of MRA were independent risk fac- tors for false-negative MRA results for irregularly shaped aneurysms. CONCLUSIONS MRA had a low sensitivity for detecting the irregular shape of small intracranial aneurysms. In particu- lar, anterior cerebral artery location, aneurysm size < 3 mm, and detection with 1.5T MRA were associated with a higher risk of irregularly shaped aneurysms being misjudged as regular. | Kwak, Youngseok; Son, Wonsoo; Kim, Yong-Sun; Park, Jaechan; Kang, Dong-Hun | Catholic Univ Daegu, Sch Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | 57204667265; 36676729400; 57095278300; 44661451000; 8977805800 | kdhdock@gmail.com; | JOURNAL OF NEUROSURGERY | J NEUROSURG | 0022-3085 | 1933-0693 | 134 | 6 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2021 | 5.526 | 10.6 | 1.3 | 2025-07-30 | 14 | 13 | magnetic resonance angiography; intracranial aneurysm; aneurysm shape; digital subtraction angiography; sensitivity; accuracy; vascular disorders | COMPUTED TOMOGRAPHIC ANGIOGRAPHY; MAGNETIC-RESONANCE ANGIOGRAPHY; SMALL CEREBRAL ANEURYSMS; DIAGNOSTIC-ACCURACY; RUPTURE; 3.0-T | Accuracy; Aneurysm shape; Digital subtraction angiography; Intracranial aneurysm; Magnetic resonance angiography; Sensitivity; Vascular disorders | Aged; Angiography, Digital Subtraction; Female; Humans; Intracranial Aneurysm; Magnetic Resonance Angiography; Male; Middle Aged; Retrospective Studies; adult; aneurysm diameter; aneurysm shape; aneurysm size; anterior cerebral artery; Article; blood vessel parameters; controlled study; diagnostic accuracy; diagnostic test accuracy study; digital subtraction angiography; female; human; image analysis; image quality; internal carotid artery; magnetic field; magnetic resonance angiography; major clinical study; male; middle aged; predictive value; retrospective study; sensitivity and specificity; unruptured intracranial aneurysm; vertebral artery; aged; comparative study; diagnostic imaging; digital subtraction angiography; intracranial aneurysm; magnetic resonance angiography; procedures | English | 2021 | 2021-06 | 10.3171/2020.4.jns20128 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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